.app_container{
    width: 100%;
    height: 100%;
    position: relative;
    .login_bg{
        width: 100%;
        height: 100%;
        background: url(../../assets/images/login_bg.png) center center no-repeat;
        background-size: 100% 100%;
    }
    .login_div{
        width: 100%;
        height: 300px;
        position: fixed;
        left: 0;
        top: calc(50% - 150px);
        background-color: rgba(0, 0, 0, 0.5);
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
        color: #FFFFFF;
        font-size: 48PX;
        padding-bottom: 40px;
    }
}

